The anion gap blood test measures the acid-base and electrolyte balance in the blood. Results can show whether there is an imbalance in a person’s pH levels, which may be making the blood too acidic ...

Jennifer Wirth is a professional writer and SEO specialist with a focus on health, wellness, parenting and beauty. She holds a bachelor’s degree in chemical engineering and is passionate about ...

A stress test can help doctors diagnose certain heart conditions, but it’s a good idea to consider ages when deciding who might undergo this exercise-based screening. Share on Pinterest FG Trade/Getty ...

Mononucleosis tests can detect antibodies directed to viruses that cause mononucleosis. Usually, a doctor recommends these tests when someone has symptoms of the disease. People often refer to ...

What Is a RDW Blood Test? An RDW blood test – also known as a red blood cell distribution width blood test – is a measure of the difference in your red blood cells’ size and volume. RDW is one part of ...

The blood test that detects nicotine is called a cotinine test. It measures recent tobacco use and exposure. Cotinine is a chemical that comes from the breakdown of nicotine in the body. A blood test ...

It was possible -- albeit rare -- for people not infected with SARS-CoV-2 to have persistent false positive rapid antigen COVID-19 tests, longitudinal data showed. Among a large cohort of over 11,000 ...